Page names as variables?

Is there an easy way to grab the page name or the referring page from another page? I have a logon script which checks if they are logged in and dumps them to a logon page if they aren't and I'd like to have a way for them to get back to where they came from (ie. they walked away from their desk and the session times out). I've been working on a way where each page knows its name and sets that as a variable but that seems rather clunky. Thanks! Ed Meyer Smarts Broadcast Systems